Enhanced Cartridge Interface
From HwB
ECI = Enhanced Cartridge Interface
Available on Atari 130XE, 800XE, and some 65XE.
Pinout
A B C D E F H o o o o o o o o o o o o o o 1 7
| Pin | Name | Description |
|---|---|---|
| A | Res | Reserved |
| B | ~IRQ | Interrupt request |
| C | ~HALT | Halt CPU |
| D | A13 | CPU Address bus line 13 |
| E | A14 | CPU Address bus line 14 |
| F | A15 | CPU Address bus line 15 |
| H | GND | Ground |
| 1 | ~EXTSEL | External Select |
| 2 | ~RST | Reset output |
| 3 | ~D1XX | Chip select at area $D1xx |
| 4 | ~MPD | Math Pack (FP) disable |
| 5 | Audio input | |
| 6 | ~REF | Refresh cycle |
| 7 | +5V | +5VDC |
Contributions
Sources
- Atari 8-Bit Computers: Frequently Asked Questions by Michael D. Current